I get the error: Video format or MIME type is not supported Most of the fixes i have seen apply to desktop but this seems to persist even for the mobile browser. I'm hoping that this is something Firefox fixes on their end to avoid having the users install their own fixes all the time, if possible for ALL platforms. It's just not right that we need to do our own individual workarounds when something as basic as playing a video should already be functional in the first place. Thank you.